An object is accelerated from 18 m/s at a rate of 4 m/s^2. At the end of 5 s, the magnitude of the velocity of the object is
To find the magnitude of the velocity at the end of 5 seconds, we can use the formula:
Velocity (v) = Initial velocity (u) + (Acceleration (a) x Time (t))
Given:
Initial velocity (u) = 18 m/s
Acceleration (a) = 4 m/s^2
Time (t) = 5 s
Let's substitute the given values into the formula and solve for the magnitude of velocity (v):
v = u + (a*t)
v = 18 m/s + (4 m/s^2 * 5 s)
v = 18 m/s + 20 m/s
v = 38 m/s
Therefore, at the end of 5 seconds, the magnitude of the velocity of the object is 38 m/s.